U-bar for glass roofs and glass walls.



No. 838,693. PATENTBD DEC. 18, 1906.

J. DEGENHARDT. U-BAR FOR GLASS ROOFS AND GLASS WALLS.

APPLICATION FILED JA N. 12. 1906- wmmm A I rm: nomus PETERS co.,WASHINGTON, b. c.

UNITED STATES PATENT OFFICE.

JOHANNES DEGENHARDT, ()F BERLIN, GERMANY, ASSIGNOR TO WILLIAM F. PLASS,OF NEW YORK, N. Y.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed January 12,1906. Serial No. 295,791.

1'0 all whom it vim/y concern.

Be it known that I, JoHANNEs DEGEN- HARDT, a subject of the GermanEmperor, and a resident of 33 Waldstrasse, Berlin, Germany, haveinvented new and useful Improvements in Skylights and Sidelights, ofwhich the following is a specification.

The invention relates to improvements in U-bars for glass roofs andglass walls, the said U-bars serving to support the panes of glass usedas well as for carrying away any water collecting on the latter. Inthese U- bars are fixed bridge-like brackets, on which the panes ofglass are fastened by means of lengthwise plates, bars, or caps of metalor other appropriate substance and screw or bolt and nut.

The invention consists therein that the upper lengthwise sides of theU-bar, which may be conveniently made of sheet metal, is bent inwardlike a spiral, and in the yoke thus formed is carried a bridge-likebracket with hook-like ends which fit into the said yoke formed by theinward bending of the the bridge-like bracket with its hook-like endsfitting into this in such a manner that it holds the two sides of theU-bar together, and thus prevents the sides from being bent outward. Byreason of this strengthening and stiffening of the Ubar it can be madeof considerably lighter and thinner metal or other material than hasheretofore been necessary. Furthermore, the position of the bridge-likebrackets is fixed and held by this arrangement without any other meansof fastening them in place.

The accompanying drawings show side and cross-section views of one formof this invention.

Figure 1 is a vertical section on line A B of Fig. 2, which is a sideview of a complete U- bar; and Fig. 3 is a perspective View of abridge-like bracket with hook-like ends.

The U-bar a, which may have any desired cross-section form, is bentinward at the upper end of the sides in such manner that the half-spiralform 6 results lengthwise on the U-bar. These half-spirals are bentaround so as to not quite touch the sides of the U- bar, and aretherefore open from below, as shown in Fig. 1. The bridge-like bracketsc, which carry the fastening-screws d, the panes of glass 6, and theholding-bars f and g, are provided with hook-like ends h, Fig. 3, somade as to fit the half-spiral yoke b, so that, as an illustration, bysliding the bracket 0 into one end of the U-bar a the hook-like ends hhook and fit into the half-spiral yoke b, as may be seen in Fig. 1. Bythis hooklike fitting and holding together of the yoke b and thehook-like ends it the support and the connection between the U-bar a andthe bracket 0 is obtained.

The form of the U-bar, as also the placing of the panes of glass and thefastening of the same to the U-bar, can be altered to suit theconditions in the various forms of buildings and other constructionswhere they may be employed.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is

1. Improved U-bars a for glass roofs and glass walls, whose sides arebent s irally b, and bridge-like brackets c, with ook-like ends h, whichfit and hook into the spiral yoke b.

2. A skylight structure comprising a supporting channel-bar having itsedges bent spirally inward, brackets having hookshaped ends engaged withthe said bent edges of the bar and supported thereby above the bottom ofthe bar, and means for connecting glass panes with said brackets.

3. A skylight structure comprising a sup,

porting channel-bar having its edges bent spirally inward, bracketshaving hookshaped ends fitting within the bent edges of the bar,clamp-plates for engaging panes of glass, and screws or bolts passingthrough said clamp-plates and brackets.

In testimony whereof I have afiiXed my signature in presence of twowitnesses.

J OHANNES DEGENHARDT.

Witnesses HENRY HASPER, WOLDEMAR HAUPT.

